(19)

(11)

EP 1 157 507 A1

(12)

(43) Date of publication: 28.11.2001 Bulletin 2001/48 (21) Application number: 00900942.4 (22) Date of filing: 11.01.2000

(51) International Patent Classification (IPC)7: H04L 12/58 (86) International application number: PCT/KR0000/012 (87) International publication number: WO 0042/747 (20.07.2000 Gazette 2000/29)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 13.01.1999 KR 1999638 (71) Applicant: Lee, Soobok Kangnam-ku,Seoul 135-080 (KR)	(72) Inventor: Lee, Soobok Kangnam-ku,Seoul 135-080 (KR) (74) Representative: O'Connell, David Christopher  Haseltine Lake & Co.,Imperial House,15-19 Kingsway London WC2B 6UD London WC2B 6UD (GB)